United States, Boulder

Sunday

Today

Extreme

Monday

Tomorrow

High

Tuesday

Jun 17

Moderate

Wednesday

Jun 18

High

Thursday

Jun 19

Extreme

How we forecast?

Boulder Mosquito Forecast: What to Expect This Year

If you're planning outdoor adventures near the Flatirons or along Boulder Creek, knowing the Boulder mosquito forecast is essential. Mosquito activity in Boulder typically ramps up in late spring, peaking in July with a forecast rating of 8 out of 10. Early spring and late fall see much lower mosquito presence, making those months ideal for bug-free hikes. This seasonal pattern helps locals and visitors anticipate when to take extra precautions. For real-time updates, check the Boulder County Public Health mosquito page. Staying informed ensures your time outdoors remains enjoyable and safe.

Year round mosquito forecast

Mosquito Intensity

Factors Driving Mosquito Activity in Boulder

Several environmental factors influence mosquito populations in Boulder. The city's proximity to water bodies like Boulder Reservoir and the South Boulder Creek provides breeding grounds. Warm temperatures and humidity during summer months accelerate mosquito life cycles. Here are key influences:

Standing water from recent rains or irrigation
Temperature consistently above 50°F
Vegetation providing shade and shelter

Understanding these factors helps residents minimize mosquito exposure by eliminating stagnant water and using protective measures. For more details on mosquito habitats, visit the Colorado State University Extension.

Mosquito-Borne Diseases in Boulder: What You Should Know

While Boulder is not a hotspot for mosquito-borne illnesses, it's wise to stay aware. West Nile Virus has been detected in Colorado mosquitoes, including areas around Boulder. Symptoms range from mild flu-like signs to severe neurological effects in rare cases. Preventing bites is the best defense. The Centers for Disease Control and Prevention (CDC) recommends:

Using EPA-registered insect repellents
Wearing long sleeves and pants during peak mosquito hours
Ensuring window and door screens are intact

Learn more about local disease risks on the Colorado Department of Public Health & Environment site.

Stay Updated and Prepared for Mosquito Season in Boulder

Keeping up with the latest mosquito forecasts and prevention tips helps you enjoy Boulder’s outdoors safely. Sign up for alerts from Boulder County Public Health and monitor local news during the summer months. Simple steps like removing standing water and using mosquito nets can reduce bites significantly. Remember, early morning and dusk are peak mosquito activity times. For comprehensive guidance, check out the Environmental Protection Agency’s mosquito control resources. Stay informed, stay protected, and make the most of Boulder’s beautiful trails and parks. Meta description: Stay safe with the Boulder mosquito forecast. Learn about mosquito activity, diseases, and prevention tips in Boulder, Colorado.

Check out our recommended mosquito protection products

Mosquito-borne diseases in the area

Malaria

Zika

Dengue

Yellow Fever

Chikungunya

West Nile Fever

FAQs

Mosquito season in Boulder generally runs from late spring through early fall, peaking in July and August when conditions are warm and humid.

West Nile Virus is the primary mosquito-borne disease reported in Boulder, though cases are rare. Taking preventive measures is recommended.

Use EPA-approved insect repellents, wear long sleeves and pants during dawn and dusk, and eliminate standing water around your home to reduce mosquitoes.

Further information

Boulder County Public HealthColorado State University ExtensionCDC West Nile Virus